Hello, I recently install ubuntus 10.04 LTS on my desktop. My target is to install R from package manager as I learn that that will easier for me. I got the "SECURE APT" from Micheal yesterday and successfully installed that. However, I am unable to update my system successfully or to install R using sudo apt-get update. When I clicked check on the update manager, Many packages where downloaded and updated but one error persisted: "Failed to fetch http://cran.ru.ac.za/dists/bin/linux/ubuntu/lucid//binary-amd64/Packages.gz 404 Not Found Some index files failed to download, they have been ignored, or old ones used instead." The same error occurred when I tried to install R using sudo apt-get update. Since I am in South Africa, the cran mirror I added in my source.list is :deb http://cran.ru.ac.za/ bin/linux/ubuntu lucid/ I am trying this for the first time and will be greatly obliged if I am help out. Best regards Ogbos [[alternative HTML version deleted]]